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661: Difference between revisions
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|manufacturer=Tektronix | |manufacturer=Tektronix | ||
|series= | |series= | ||
|model= 661 | |model=661 | ||
|summary=Sampling scope | |summary=Sampling scope | ||
|image=661_5T1A_4S1_front.JPG | |image=661_5T1A_4S1_front.JPG | ||
| Line 49: | Line 49: | ||
Four sampling units were made: | Four sampling units were made: | ||
* [[4S1]] (0.35 ns rise time) | * [[4S1]] (0.35 ns rise time) | ||
* [[4S2 | * [[4S2]] (0.1 ns rise time) | ||
* [[4S2A]] (90 ps rise time) | |||
* [[4S3]] (uses [[P6038]] sampling probes) | * [[4S3]] (uses [[P6038]] sampling probes) | ||
| Line 56: | Line 57: | ||
* [[5T1A]] | * [[5T1A]] | ||
* [[5T3]] | * [[5T3]] | ||
There is also a set of calibration fixtures, [[067-0066-00]], consisting of one Vertical Test Load Unit and one Sweep Test Load Unit plug-in, but these were likely internal-only products for use in production and service as the 067-0066-00 manual says that ''067-0066-00 Test Load Units are not required for calibration of 661s in the field''. | |||
== Inter-module signals == | == Inter-module signals == | ||
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and mainframe wiring harness for routing trigger and timing signals between the two units?'' | and mainframe wiring harness for routing trigger and timing signals between the two units?'' | ||
Some 661s have a 41 pin [[Bendix connector]], J5, on the rear panel, | Some 661s have a 41 pin [[Bendix connector]], J5, Tek part number 131-212, on the rear panel, | ||
perhaps to allow the 661 to be interfaced to low speed data acquisition equipment or a computer. | perhaps to allow the 661 to be interfaced to low speed data acquisition equipment or a computer. | ||
This is essentially a pass-through from J2 & J3, the secondary multi-pin connectors on the vertical & horizontal plug-ins. | This is essentially a pass-through from J2 & J3, the secondary multi-pin connectors on the vertical & horizontal plug-ins. | ||
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but the construction style is similar. | but the construction style is similar. | ||
The 661, like the 500-series scopes, uses Amphenol 26-series connectors | The 661, like the 500-series scopes, uses Amphenol 26-series connectors | ||
for the electrical interface between plug-in and mainframe. | for the electrical interface between plug-in and mainframe, but the | ||
661 uses a 24-pin version whereas the 500-series uses a 16-pin version | |||
of the connector. | |||
The sides and rear of the 661 painted identically to late-model | The sides and rear of the 661 painted identically to late-model | ||
500-series scopes, i.e., Tek-blue wrinkle. | 500-series scopes, i.e., Tek-blue wrinkle. | ||
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<gallery> | <gallery> | ||
Tek 661 s-52 rise.jpg|661 with [[4S1]] and [[5T3]] fed by [[S-52]]. 2 ns/div with 10x horizontal expansion gives 200 ps/div. | |||
661 5T1A 4S1 front.JPG | front view | 661 5T1A 4S1 front.JPG | front view | ||
661_front.jpg | front view | 661_front.jpg | front view | ||
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</gallery> | </gallery> | ||
{{Plugins|661}} | |||
==Components== | |||
{{Parts|661}} | {{Parts|661}} | ||
[[Category:Sampling scopes]] | [[Category:Sampling scopes]] | ||
[[Category:661 series scopes]] | [[Category:661 series scopes]] | ||